Merge pull request #248 from aulea/bumpGroovy-2.5.14

Bump groovy version to 2.5.14 as is Grails 4.0.x.

Author: puneetbehl

gradle.properties

@@ -2,7 +2,7 @@ gormVersion=7.0.8.BUILD-SNAPSHOT
 slf4jVersion=1.7.29
 servletApiVersion=4.0.1
 grails3Version=3.3.8
-groovyVersion=2.5.6
+groovyVersion=2.5.14
 springBootVersion=2.1.10.RELEASE
 springVersion=5.1.11.RELEASE
 hibernate5Version=5.4.10.Final